基于核磁共振T2谱图的裂隙砂岩疲劳损伤分析

毛思羽,曹平,李建雄,欧传景

Fatigue Damage Analysis of Fractured Sandstone Based on Nuclear Magnetic Resonance T2 Spectrum

Siyu MAO,Ping CAO,Jianxiong LI,Chuanjing OU

图5 砂岩疲劳加载前后T2谱分布曲线和孔隙度累积曲线 注：岩样代号以A-B形式标注，A为裂隙角度（°），B为疲劳上限应力（MPa）

Fig.5 T2 distribution and cumulative porosity curve before and after fatigue loading of sandstone